ABS(diag)-49
ABS (DIAGNOSTICS)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
I:
DTC C0115 ABS WHEEL SPEED SENSOR SIGNAL MALFUNCTION IN ONE
OF FOUR WHEELS
DTC DETECTING CONDITION:
• Defective ABS wheel speed sensor signal (noise, abnormal signal, etc.)
• Defective magnetic encoder
• When a wheel is turned freely for a long time
TROUBLE SYMPTOM:
• ABS does not operate.
• EBD does not operate.
NOTE:
Brake warning light comes on as well as ABS warning light.
11
CHECK SOURCES OF SIGNAL NOISE.
Check if the noise sources are (such as an
antenna) installed near the sensor harness.
Are noise sources installed?
Go to step 12.
Install the noise
sources apart from
the sensor har-
ness.
12
CHECK ABSCM&H/U.
1) Connect all the connectors.
2) Perform clear memory mode.
3) Perform the inspection mode. <Ref. to
ABS(diag)-25, Inspection Mode.>
4) Read the DTC.
Is the same DTC displayed?
Replace the
ABSCM only.
<Ref. to ABS-8,
REPLACEMENT,
ABS Control Mod-
ule and Hydraulic
Control Unit
(ABSCM&H/U).>
Go to step 13.
13
CHECK ANY OTHER DTC ON DISPLAY.
Is any other DTC displayed?
Perform the diag-
nosis according to
DTC.
It results from a
temporary noise
interference.
NOTE:
Though ABS warn-
ing light remains to
illuminate at this
time, it is normal.
Drive the vehicle at
more than 12 km/h
(7 MPH) in order to
make ABS warning
light go off. Be sure
to drive the vehicle
and check the
warning light goes
off.
Step
Check
Yes
No